Pith Number

pith:H63X3KOV

pith:2014:H63X3KOVJCYNQEYRZIWGWSD3QA

not attested not anchored not stored refs pending

Sequential edge-coloring on the subset of vertices of almost regular graphs

Petros A. Petrosyan

arxiv:1401.0836 v1 · 2014-01-04 · math.CO · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H63X3KOVJCYNQEYRZIWGWSD3QA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:03:11.827401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fb77da9d548b0d81311ca2c6b487b802659886f88389338bf0e2c6ef1a55844

Aliases

arxiv: 1401.0836 · arxiv_version: 1401.0836v1 · doi: 10.48550/arxiv.1401.0836 · pith_short_12: H63X3KOVJCYN · pith_short_16: H63X3KOVJCYNQEYR · pith_short_8: H63X3KOV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/H63X3KOVJCYNQEYRZIWGWSD3QA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3fb77da9d548b0d81311ca2c6b487b802659886f88389338bf0e2c6ef1a55844

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "299917d0e4fc9cecd1bb4b69c333afc1724c4e70024c933549ba634c70f46304",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-01-04T18:48:01Z",
    "title_canon_sha256": "d29451fc258b4f0a91d7c7ac45058769affb0cf8f0bbd5531daf64703c15f26d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0836",
    "kind": "arxiv",
    "version": 1
  }
}